Can you find out the missing number in the grid?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

500 women soldiers are arranged in an array of ten rows and fifty columns in accordance with their respective heights. Now, the tallest woman from each row is asked to move out in the front. From them, the shortest one is labelled as Alpha. They are then asked to resume their original position.

Now, the shortest woman in each column is asked to come out in front. The tallest among them is labelled as Beta.

Can you find out if Alpha will be taller or Beta?

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

I am quite hot but become too cold if you remove the first two letters. What am I?

What do you think with the below Picture ?

Can you divide the below-given shape into four equal and identical pieces?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

What brings you down but never up?